Phylum Mollusca Linnaeus, 1758 - molluscs
Subphylum Conchifera Gegenbauer, 1878
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Orthogastropoda Ponder & Lindberg, 1995
Superorder Caenogastropoda Cox, 1960
Order Sorbeoconcha Ponder & Lindberg, 1997
Suborder Hypsogastropoda Ponder & Lindberg, 1997
Infraorder Ptenoglossa Gray, 1853
Superfamily Janthinoidea Lamarck, 1822
see Superfamily Epitonioidea Berry, 1910 (1812)
Family Epitoniidae Berry, 1910 (1812) - wentletraps
1 Subfamily Epitoniinae Berry, 1910 (1812)
see Family Epitoniidae Berry, 1910 (1812)
2 Subfamily Nystiellinae Clench & Turner, 1952
see Family Nystiellidae Clench & Turner, 1952
3 Subfamily Pseudonininae Bertolaso & Palazzi, 1994
see Family Provannidae Warén & Ponder, 1991